EP0108935B1 - Stanzmaschine, deren Stanzstempel als Mehrfachstempel ausgebildet ist - Google Patents

Stanzmaschine, deren Stanzstempel als Mehrfachstempel ausgebildet ist Download PDF

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Publication number
EP0108935B1
EP0108935B1 EP19830110194 EP83110194A EP0108935B1 EP 0108935 B1 EP0108935 B1 EP 0108935B1 EP 19830110194 EP19830110194 EP 19830110194 EP 83110194 A EP83110194 A EP 83110194A EP 0108935 B1 EP0108935 B1 EP 0108935B1
Authority
EP
European Patent Office
Prior art keywords
stamping machine
die
machine according
punching
base body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP19830110194
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0108935A3 (en
EP0108935A2 (de
Inventor
Hans Dipl.-Ing. Klingel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Trumpf SE and Co KG
Original Assignee
Trumpf SE and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6177467&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0108935(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Trumpf SE and Co KG filed Critical Trumpf SE and Co KG
Publication of EP0108935A2 publication Critical patent/EP0108935A2/de
Publication of EP0108935A3 publication Critical patent/EP0108935A3/de
Application granted granted Critical
Publication of EP0108935B1 publication Critical patent/EP0108935B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/04—Movable or exchangeable mountings for tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/12—Punching using rotatable carriers
    • B21D28/125—Punching using rotatable carriers with multi-tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/34—Perforating tools; Die holders
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/162—With control means responsive to replaceable or selectable information program
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/444—Tool engages work during dwell of intermittent workfeed
    • Y10T83/4491—Interlock between tool actuating and work feed means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/626—Operation of member controlled by means responsive to position of element remote from member [e.g., interlock]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8727—Plural tools selectively engageable with single drive
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8727—Plural tools selectively engageable with single drive
    • Y10T83/8732—Turret of tools
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8759—With means to connect or disconnect tool and its drive

Definitions

  • the invention relates to a punching machine with a punching tool consisting of at least one punch and a die, the punch being designed as a multiple punch with at least two punch pins and the die as a multiple die with at least two die holes, the punch pins also being provided in a base body or the like the punch can be moved in the direction of its longitudinal axis and, in particular individually, can be locked in the extended working position by means of at least one control member. wherein the punching pins can be transferred from the ineffective into the working position by means of a drive device.
  • a punching machine is known from US-A-3 048 328. Each punching pin of this machine can be brought into the working position individually using a separate drive.
  • Each of the drives designed as pneumatic working cylinders is constantly connected to the associated control element. But because the control element is slidably mounted on the base body of the punch, it constantly follows its working movement. As a result, the drive is also carried along when punching in the punching direction, i. H. constantly moving up and down. This requires flexible feed and discharge lines to the drive motor. As a result, the latter are subject to high stresses and therefore constitute a source of failure. However, it is particularly disadvantageous that it is not possible to act on a plurality of punching pins with a single motor or control member. Otherwise, the control element does not act directly on the punching pin, but rather on a special, elaborately designed holder, and this requires additional guide bolts. This creates a complex, space-consuming construction. The number of punch pins is very limited due to the space required by the motors.
  • the object of the invention is therefore to further develop a punching machine of the type described in the introduction in such a way that it can be transferred to the extended working position or locked in the working position with little construction effort for both a single punching pin and a punching pin group.
  • the punching machine is designed in accordance with the preamble of claim 1 in accordance with the characterizing part of this claim. Due to the parallel arrangement of the punch pins to the axis of rotation of the base body or the control member, by rotating the base body or control member slidably receiving the punch pins, each can act on at least one of the punch pins and move it into the working position. In this way, the punching pattern can be changed relatively easily and quickly. Only the length of the recess or of the section located between the ends of the recess, seen in the adjustment direction, is decisive. In particular, it is possible to bring only one of several punching pins into the working position, while the others are in an ineffective position.
  • the rotatable design of the base body or of the control member requires the drive coupling with a drive element, which also participates in the punching movement, but such a rotatable drive stroke executing drive member can be easily coupled in a known manner with a stationary drive motor. This saves flexible inlets and outlets.
  • the punch pins can be of simple shape. A thread, as required by the prior art described at the outset, can easily be avoided by using an outer collar known per se at the inner end of the punching pin. Overall, a simple and robust construction of the punch is obtained.
  • the drive device is designed as a transmission with a driven pinion and a drivable gearwheel, the pinion being in drive connection with the motor or being able to be brought.
  • a further embodiment of the invention is characterized in that the additional drive device for the die is designed as a gear with a driven pinion and a driven gear.
  • the pinions of the drive device and the additional drive device for the die can preferably be driven by means of a common motor, a preferred variant being that the die and the base body can be driven synchronously.
  • the punch pins are advantageously arranged along a circular line.
  • the recess is formed on the control element in a further embodiment of the invention.
  • the latter in turn is rotatably mounted on the non-rotatable base body of the punch.
  • the plunger can be of conventional design and with a conventional receptacle for a fastening pin of the punch.
  • Another variant of the invention is characterized in that the recess is made with a rotatable base body at the lower end of the plunger or on a punch plate.
  • the latter does not require any special training of the tappet end, but the punch of the other embodiment is of a particularly simple construction.
  • the recess is according to a further training of the invention designed as an arcuate control groove.
  • Their width need not be larger than the diameter of the engaging punch pin end. Its depth can correspond approximately to the extent to which the cutting edge of the working punch penetrates into the die beyond the workpiece surface assigned to it.
  • the control groove has a run-up slope at both ends, via which the upward and downward movement of the punching pin can be gently initiated.
  • a preferred variant of the invention provides that the punch has a bearing journal for the rotatable bearing body which is parallel to its clamping journal, the lateral distance being selected in this way. that the geometrical axis of the punching pin in the working position holds together with the geometrical axis of the clamping pin.
  • a bearing pin is provided on the base body, which is held in a bearing bore of the control member.
  • the lateral distance between the two pins is selected so that when the base body is rotated through the various working rotation angles, one of the punching pins of this punch is always exactly aligned with the geometric axis of the punch. Therefore, the base body has an annular or disc-shaped shape and expediently one also selects a disc shape for the control element which corresponds approximately to that of the base body in terms of its diameter.
  • the clamping pin is attached to this disk of the control element off-center.
  • control member is rotatably mounted concentrically on a clamping pin on the base body of the punch.
  • the basic body is of a particularly simple shape.
  • each punch pin is spring-loaded into an inactive position by a compression spring. It therefore always assumes its retracted position during the punch stroke.
  • the compression spring is supported with its tappet-side end on a thickened head of the punching pin on the one hand and with its other end on the bearing body on the other.
  • the plunger 3 can be moved up and down in the direction of the double arrow 4.
  • the drive for the tappet is of a known type, for example an eccentric drive.
  • the stamping plunger 3 has a central plunger bore 5 for inserting a clamping pin 6 of a stamping stamp 7.
  • the clamping pin is held in a known manner, in particular automatically locked.
  • the punch 7 is part of a punch 8, which also includes a die 9 and, in the case of a three-part tool, also includes a hold-down device, not shown.
  • a scraper can also be provided. It prevents the workpiece 11 from being lifted off the support surface 12 when the punch 7 goes up. At least it prevents the workpiece from being lifted to any appreciable extent.
  • the support surface 12 is formed by the top of a table or machine frame 13 or by the free surface of the die 9.
  • the punch is designed as a multiple stamp and it has several punch pins. Like the punch pin 43, they can have a constant thickness or, for example, have a reduced cross section at their working end. Each is assigned a die hole that corresponds to its cross section. As shown in FIG. 1, the die bores are flared at their inner end and are located on one or each insert 22 of the die 9.
  • Each punch pin is slidably mounted in a bore 23 of a base body 24 of the punch 7 in the sense of the double arrow 4, the bores all having the same diameter in the preferred case of punch shafts of the same strength.
  • an outer collar 25 can be provided at the inner end of the punch pin and thus also the punch pin shaft, which cooperates with a corresponding lowering of the base body 24 and prevents the punch pins from falling out in the punching direction 27.
  • the punch pin 43 is in its working position, while the other punch pins assume a retracted rest position. The latter is achieved, for example, with the aid of a compression spring 28 which engages on the punching pin in question and which can be supported on the green body 24 with its other end.
  • Fig. 4 shows such a design with compression springs 28. In this case, however, the outer collar 25 is no longer directly on a depression 26 but indirectly supported by the compression spring 28 on the base of a bore extension 29.
  • the punching pins can be moved from their working to their rest position and vice versa by means of a control member in the direction of their longitudinal axis.
  • the control member 31 is designed as a rotary valve. It has a circular shape and has teeth on its outer circumference. About a la gerbuchse 40 it is rotatably mounted on the base body 24 of the punch 7. The rotation is achieved with the aid of a drivable pinion 41.
  • the control member 31, which is also designed as a rotary slide and gear 42, is arranged concentrically with the clamping pin 6 and thus also concentrically with the geometric axis of the plunger 3. Accordingly, the 6 punch pins 43 to 48 lie on a circular line 49.
  • the recess 50 is designed as an arc-shaped groove and it has a run-up slope at both ends. It is envisaged that only one punch can be in the working position. In the drawing, this is the punch pin 43. All the other punch pins therefore assume their retracted rest position. In addition, one can clearly see in FIG. 1 that the diameter of the working free end of each punching pin can be of different sizes, but the displaceable shafts and thus also the bores in the base body 24 have the same diameter.
  • the inner end preferably again provided with a collar 25, is supported in a flush position with the surface 37 of the base body 24 on the associated lower surface of the rotary slide valve or control member 31, while all the other inner ends of the punching pins protrude into the arcuate recess 50.
  • the cutting or cutting surface of the 5 retracted punch pins is on or above the surface 52 of the workpiece 11.
  • the control member 32 is through the lower end of the plunger 3 formed, ie it is made in one piece with the plunger 3 in the embodiment. Instead, it can of course be manufactured separately in a preferred manner and attached to the lower end of the plunger.
  • six punch pins 43 to 48 are provided.
  • the arrangement is drawn so that the punch pin 43 is in the working position at the end of its working stroke, while the other punch pins are in their rest position.
  • the recess 50 is comparable to that in FIG. 1.
  • the transfer of the punching pins from the working to the rest position and vice versa does not take place here by turning the control member, rather the base body 24 of the punching die 7 is rotated here.
  • it is designed at its upper end as a gear 53 which can be driven by means of a pinion 41 which corresponds to that of FIG. 1.
  • the die 9 must also be rotated in the same way in the variant shown in FIG. As a result, it is provided or made in one piece with a gear 54 which can be driven by a pinion 55.
  • the two pinions 41 and 55 preferably rotate at the same speed and in the same direction. These rotations take place when none of the punch pins engages in its die hole.
  • the control member 33 has a clamping pin 6 for insertion in the control tappet. It is held there against rotation.
  • it carries a bearing journal 56 which extends to the other side and on which the base body 24 of the punch 7, which is designed as an annular support body 57, is rotatably mounted.
  • the pins 6 and 56 are laterally offset from one another. The side spacing is chosen so that the geometric axis of the punching pin in the working position - in FIG. 4 punching pin 43 - coincides with the geometric axis of the clamping pin 6 and thus also of the ram 3.
  • the ring-shaped support body 57 is designed or connected to a gear 58 at its upper end, which gear can be driven by a pinion 59.
  • Rotation of the ring-shaped support body 57 or base body 24 causes the punching pin in the working position to be brought into the rest position and one of the neighboring punching pins is extended from the rest position into the working position.
  • the die 9 is driven by a pinion, which is designated by 60. It works with a gear 61 of the die.
  • the rotation of the die and the ring-shaped support body 57 preferably takes place synchronously.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Punching Or Piercing (AREA)
EP19830110194 1982-11-06 1983-10-13 Stanzmaschine, deren Stanzstempel als Mehrfachstempel ausgebildet ist Expired EP0108935B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823241046 DE3241046A1 (de) 1982-11-06 1982-11-06 Stanzmaschine, deren stanzstempel als mehrfachstempel ausgebildet ist
DE3241046 1982-11-06

Publications (3)

Publication Number Publication Date
EP0108935A2 EP0108935A2 (de) 1984-05-23
EP0108935A3 EP0108935A3 (en) 1984-08-22
EP0108935B1 true EP0108935B1 (de) 1987-06-16

Family

ID=6177467

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830110194 Expired EP0108935B1 (de) 1982-11-06 1983-10-13 Stanzmaschine, deren Stanzstempel als Mehrfachstempel ausgebildet ist

Country Status (4)

Country Link
US (2) US4569267A (zh)
EP (1) EP0108935B1 (zh)
JP (1) JPS59130634A (zh)
DE (1) DE3241046A1 (zh)

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CN104942128B (zh) * 2015-06-30 2018-05-01 歌尔股份有限公司 一种冲裁模具及卷盘嵌件冲裁装置
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TWI643686B (zh) * 2017-01-18 2018-12-11 啟翔股份有限公司 自動切換沖頭裝置
JP6888475B2 (ja) * 2017-08-16 2021-06-16 トヨタ紡織株式会社 パンチプレス装置
DE102018203318B4 (de) * 2018-03-06 2019-10-02 Pass Stanztechnik Ag Mehrfachwerkzeug für eine Stanzvorrichtung und Werkzeugsystem mit einem Mehrfachwerkzeug
CN108941331B (zh) * 2018-08-15 2024-04-26 天津市博源机械制造有限公司 一种非标准零部件加工模具
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Publication number Publication date
US4555966A (en) 1985-12-03
EP0108935A3 (en) 1984-08-22
US4569267A (en) 1986-02-11
EP0108935A2 (de) 1984-05-23
JPS6219925B2 (zh) 1987-05-01
JPS59130634A (ja) 1984-07-27
DE3241046A1 (de) 1984-05-10

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